elderkin



May 26, 1931.

P. N. ELQERKIN DIISPEN'SING MEANS Filed Feb. 4. 1929' ATTORNEY Patented May 26, 1931 Ars .PAUL N. ELDERKIN, OF'V LOSANGELES, CALEORN'IA DisrnivsiNe iiriiuilvsV Y Application `filed lFebruary 4, 1929. Y Serial o. 337,459.

This inventionrelates to a device for feed*- ing, or supplying, fluid substances to. pressure apparatus, such as internal combustion `heat-motors. .Such Huids may be edectively supplied for added lubricatioi'nor for removal` of carbon deposits, or `pieventionof the for.-

mation of such deposits, Lor any other pur-V poses. Y

The object ofthe invention isto provide an apparatus which canbe easily and eco-` nomically produced, which can be installed Without appreciableexpenditure of money, time or skill; which is adjustablebetween comparatively wide limits to Vfurnish much or little of the fluid substance to the apparatus Ywhich it serves, and which supplies the said'substance most economically and effectively. Ctherobjects will appear as the description proceeds and'will be manifest to those skilled inthe art; and the invention consists inthe novel and eectiveg provision, combination, association andl relative ar'- rangement of parts, membersv and features,y

line, thetwo devices beingconnected tothe `manifold at lthe same opening by ymeans of a T, the motor being fragmentally'indicated.

Referring to the drawings'.v isr a container, which, in one of itspreferred forms is a glass bottle adapted to receivea screw" closure B through which latter passes the member J. As shown, this member isa cylindrical Vshaped'metal piecehavingv a'flangeV K near oneend, the opposite end being threadvso ed to receive cap N. P. is a resilient packing ring. Tubes'C and D which are the inner and outer tubes respectively are bothattached to the member J, being preferably screwed intofplace as shown. C is a small tube which, as shown in Fig. 2,'has its lower 'end fastened tightly, being preferably screwed Vinto closure member VJ. D is a larger tube which surrounds and'en'closes tube C. .Tube lD is likewise screwed into place at its lower end nclosure member J and there isno connection between the lower ends of the twor tubes, both being'tightly closed ed from the container A at the Vbottom ends.l The upper end of inner 'tube C terminates 4slightly be` low fthe upper'end Vof`outer tube D as indicated. Cover cap E', provided with the two perforations F F extendingtherethrough, as shown, is screwed on theupper end ofthe outer tubev D and does not Contact with the inner tube C at"all. Clearly, there is a con-yv nectioirbetween the inner and outer tubes -at the topd ends throughthe covercap E. G are the small ports made at various levels ,y

in tthe wall vofthe outer tube' and which provide communication. between the containtween container andtlie upper open endof tubeC. v Y n ,Y

Pipe fastenedto the outer end of member J by an elongated portion, .ornipple t which'v is threaded as shown, and over which a closure cap N-is screwed, through which" f cap pipe C passes, its Aend adj'acentnipple of member J being enlarged,` as shown, so

that'when the clesurecap N is screwed tight-15 ly over the nipple lof member J, it holds'the connecting pipe in placeand makes ani air-tight seal at the joint. As shown inFig. 3, the pipe C connectswith manifoldR through the connecting T. Y I e V Considering the dierent parts and their ing high in thecontainer, isthe sole communication between the container andthe operations, itis clear that tube C, terminat-` i outside. A 'covert-cap E screwed on the upper end ofthe tube D covers tube C and encloses lit ventirely in outer tube' D, sothat tube D intervenes between the manifold pressure and that inthe container A; The inside tube C is connected by pipel O, with the engine manifold, as shown. e Obviously. the pressure in the manifold (absolute) will be equal to that in the connecting tube O and also in the inner tube C in the vessel A. Also, the pressure (absolute) inside the vessel A will become the ysame as that of the manifold because any change in the manifold pressure is communicated to the container A through the tubes O, C and D after a sufficient time has elapsed for the two pressures to become identical by working through the small ports in the passage from the manifold to the container interior. Clearly, there is no communication between the manifold and the container except through the smallholes G G in the side of tube D or holes FF in the top cap. the end of the top cov-er-capLso that the pressure existing in the inner tube C, equal at all times to that in the engine manifold, `will be communicated to the inside of the outer tube D, the annular space between outer and inner tubes being also subjected to the pressure in the Vmanifold or other part of the motor to which the inner container tube C may be connected. i

The pressure in the larger tube D in the container A tends to pass to the container all pressure changes whichV occur in the manifold, but there is a delayed action in this pressure equalization due tothe Very small area ofthe holes in tube D and cover-cap E, which provide communicationbetween the inside of the container and the manifold.V lf the manifold pressure remains constant over any appreciable length of time, the pressure inside the container becomes identical with that of the manifold, but when the pressure inthe manifold changes appreciably, some small time period must elapse before the pressure in the container becomes the same as that in themanifold.' V

The effective area of the uppermost holes inthe cover-cap F of the outer tube D, is adjustable. By screwing the cap F down over the tube end, more or less, the full area of the holes is changed in accordance with the depth of the tube in the cover-cap and the amount of the hole area covered by the' end of the tube screwed therein. If tube D be sufficiently screwed into the cover-cap F, the holes in the cap are completely covered by the portion of the tubeprojecting into the cap, so that there is no opening through the cap to the container interior. This condition leaves the small ports, in the walls of tube D, the only communicating passages from inside the tube to the out-side, or between the container and the manifold. In this case, the equalization of pressure between the manifold and the interior of the container A takes a longer time than it does when the upper holes F F, through the cover-cap E, are partly, or fully, opened. So it is clear that the adjustable openings through the cover-cap F serve the purpose of adjusting the time rate at which the equalization of pressure between the The inner tube terminates below" manifold and the interior of the container may take place.

Then the container is full of liquid, the upper level of the liquid is well below that of the holes FF in cover-cap E, as shown. However, the ports, drilled through the tube walls, are all submerged and any reduction in pressure in the manifold will cause a flow from vcontainer to manifold. rl'his will force some liquid through the ports in the wall of tube D into this tube, which surrounds the inner tube C, and thence up to the level of the upper end of the inner tube C, thence out through it and the connecting tube O to the manifold where the' liquid enters in an undivided state, in the general form of a small stream or trickle, and so distributed through the motor and over the working parts to which the working fiuid, or combustible mixture has access. lf, on the contrary, the pressure in the manifold rises to a value greater than that in the container, the vapors or gases in the manifold will pass' to the container through the openings before described and so continue: until the pressures are equalized. Hence, the pressure in the container is continually changing in a delayed, or lagging, attempt to follow the pressure changes in the manifold and when the pressure in the manifold diminishes below that of the container, liquid is fed to the manifold. By adjustment of the uppermost holes F F through the cover-cap E, the quantity of liquid fed tothe manifold is adjusted for any given change in pressure of the manifold, or rather pressure difference between that in the container and that of the manifold. This result is due to variation by cap adjustment of the total area of communication between container A and inner tube C. Obviously, if the holes F F through the cover-cap E-which are larger than the ports through the wall of the tube-are left open, lowering of the pressure in the manifold will `be attended by an almost instantaneous lowering of the pressure in the container A, by reason of the considerable area connecting the `container and the manifold, so that practically no liquid will be forced through the small ports through the wall of the tube; while, if the cover-cap holes F F are completely closed, the only possible avenue of pressure equalization is through the ports G GG in the tube side, so ythat more will be fed to the manifold before the pressures are equalized than when the ports F F are open. Hence, the holes ythrough the cover-cap are for adjustment of the rate of feed of the liquid to the motor.

rlhe vacuum feed `device is shown in order to indicate the ease with which the con tainer of the present invention may be installed. The opening in the manifold to which the vacuum feed device was connected, has a T T'placed in it, the vacuum feed reconnected to one branch' of the Tand the pipe llO O, from the liquid feed device, connected to the other branch of the T as shown.V The container. is fastened to any convenient sup-- port by means of the surrounding clamp U, to which is attached, or integral'with, the projecting portion S, formed and adapted to be screwed to a panel or wall, or bulkhead or sage of air or vapor out ofthe container through openings F, F, and of liquid through openings G, G, G.. rll`he total quantity of liquid transferred from the container tothe manifold for a' given pressure drop in the manifold, will, of course,V depend on the quantity of air or vapor which can escape through the holes F F during the totalA time required for the pressure equalizati n to talre place. Hence, as before explained, the .opone ings if F regulate, by the degree of their uncovered area, the quantity of liquid Yfed to the manifold, and it is at these uppermost' openings that adjustments of thek device are made. j j

vbviously,` as the level of the liquid falls, and the quantity of vapor in the bottle iiicreases', the number of submerged ports "fil, and the area through which liquid can pass,

decrease; while the number ofiinsubmerged ports Gr and the area through which vapor.

can pass, increase, due Vto the different elevations at which the ports are located. By this arrangement the tendency ofthe rate of feed of the liquid to increase as the volume of the expansive vapor in the container1 above the `liquid increases, is compensated, and the rate of liquid feed maintained substantially 'uniform after the' liquid level falls below ports F F; V Y

rihe use of this apparatus is in nowise limited to feedingV liquid to the manifolds of internal combustion motors, but these devices may be used for any purpose where it is desired to deliver a liquid or vapor to any apparatus or mechanism by intermittent, recurrent pressure changes which occur in one f member ofthe apparatus and which may be communicated to the container of the device herein described. So that the purpose and -uses of the invention may be many and of widely differing kinds. In important aspects the invention comprises a container into which any kind of fluid, or evenv finely divided solid substances maybe introduceda means connecting the container to any pres sure containing part of a machine or device, and means for regulating the flow of inaprising a container, means forming withinv said container aseparatechamber, aclosure Vand adjacent to the upper end of said tube.V

terial in the container to theportion of the device to which ythe connecting pipe may be attached. i

. Having described my invention, in connection witli illustrative embodiments, forms and arrangements of parts, it will be understood that manyvariants Lhercofare posf sible to those skilled in the art, and my in,-

vention, in its broader aspects, is not limitedl to theparticul'arconstruction or application herein shown 'and described, as changes in the sizes, proportions, configurations, arrangements, assemblage, inter-action, juxtaposition and mechanical relations, as well as additions, omissions, substitutions, `combinations and alterations of forms, parts,=nieinbers, features, and in the hind and order of operf ations and successive steps may be made without departing from ther broad spirit of tli`s invention.

l claim :V

l.y A device of the character Vdescribed coinprising a container, means forming within said container a separate chamber, .means providing vcommunication between said container and said chamber at vertically spaced i points, and a conduit communicating with an upper end portion of said chamber, said container being adapted to contain a fluentjsubstance and said'conduit being adapted for connection with a source of variable pressure.l

.2.' A device of the character described com# prising a container, means forming within said containera separate chamber, said chamlber being provided at vertically spaced points with apertures providing communication between the container and saidchamber, means for vari ino' the effective area of certain of 0 a a I saidapertures, and a conduit communicating j with an upper endportion of said chamber,

saidicontainer being. adapted to contain a fluent substance and lsaid conduit i vbeing adapted for connection with a Ysource of variable pressure. Y i I 3. A device of the character described comfor the top of said'chamber provided with an aperture affording communication Vbetween said container and said chamber, said closure being adjustable to vary the effective area of said aperture,.means providing communication betweensaid container and a lower portion ofsaid chamber, and a conduit communicating with an upper end portion of said chamber, said container being adapted to contain a fluent substance and said conduit being adapted forconnection with a source ofvariable pressure.

4c. A device of the character described comprising a container, -a tube extending upwardly from the bottom of said container and 'provided at verticallyV spaced points with apertures, and a conduit terminating'within nr. MJ

said container being adapted to contain a uent substance and said conduit being adapted for connection with a source of variable pressure.

5. A device of the character described comprising a container, a tube extending upwardly from the bottom of said container and in communication with the latter near its lower and upper ends, and conduit terminating Within and adjacent to the upper end of said tube, said container being adapted to contain a fluent substance and Vsaid conduit being adapted for connection with al source of variable pressure.

6. A device of the character described conV prising a container, a tube extending upwardly from the bottoni of said container and provided at vertically spaced points with apertures affording communication between the interior thereof and said container, means substantially closing the upper end of said tube, and a conduit extending upwardly through said tube and terminating adjacent to the top of said tube, said container being adapted to contain a fluent material and said conduit extending exteriorly of the container and beinc3 adapted for connection With a source of variable pressure.

7. A device of the character described coniprising a container, a tube extending upwardly from the bottom or' said container and provided at vertically spaced points With apertures affording communication between the interior thereof and said container, an apertured closure for the upper end of said tube adjustable with respect to the latter to vary the effective area of the apertures therein, and a conduit extending upwardly through said tube and terminating adjacent to the top of said tube, said container being adapted to contain a fiuent material and said .conduit extending eXteriorly of the container and being Vadapted for connection With a source of Variable pressure.

In testimony whereof, have signed my name to this specification at Los Angeles, California, this 16th day of January, 1929.

PAUL N. ELDERKIN. 

